Home / 2,667.85-3,679.68-2,313.14

Finding the Fourth Proportional to 2,667.85, 3,679.68 and 2,313.14

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Solution

The fourth proportional to 2,667.85, 3,679.68 and 2,313.14 is: 3,190.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,667.85 : 3,679.68 = 2,313.14 : x
  2. Step 2: Convert to fraction form
    2,667.85/3,679.68 = 2,313.14/x
  3. Step 3: Cross multiply
    2,667.85x = 3,679.68 × 2,313.14
  4. Step 4: Simplify right side
    2,667.85x = 8,511,596.60
  5. Step 5: Solve for x
    x = 8,511,596.60/2,667.85
  6. Step 6: Final answer
    x = 3,190.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.